package web.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.apache.tomcat.dbcp.pool.impl.GenericKeyedObjectPool.Config;

import com.sun.org.apache.regexp.internal.recompile;

public class EncodingFilter implements Filter {
	private FilterConfig config = null;
	private String defaultCharset = "UTF-8";

	@Override
	public void destroy() {
		// TODO Auto-generated method stub

	}

	@Override
	public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain arg2)
			throws IOException, ServletException {
		String charset = config.getInitParameter("charset");
		if (charset == null) {
			charset = defaultCharset;
		}
		arg0.setCharacterEncoding(charset);
		arg1.setCharacterEncoding(charset);
		arg1.setContentType("text/html;charset=" + charset);
		arg2.doFilter(arg0, arg1);
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		this.config = arg0;
	}

}
